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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Experimental analysis on the axial crushing and energy absorption characteristics of novel hybrid aluminium/composite-capped cylindrical tubular structures
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Experimental analysis on the axial crushing and energy absorption characteristics of novel hybrid aluminium/composite-capped cylindrical tubular structures

机译：新型铝/复合封顶圆柱管状结构轴向破碎和能量吸收特性的实验分析

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摘要

In recent years, aluminium-composite hybrid tubular structures, which combine the stable and progressive plastic deformation of the aluminium metal with light-weight composite materials, are obtaining increased consideration for meeting the advanced needs of crashworthiness characteristics. This research article presents the experimental outcomes of novel aluminium/composite-capped cylindrical tubes subjected to quasi-static and impact axial loads. The influence of various capped geometries in the aluminium segment and three different fabrics of the composite segment in the cylindrical tube are investigated experimentally. The outcomes of the impact crushing test are also correlated with the quasi-static results of the proposed aluminium/composite-capped cylindrical tubes. The overall outcomes revealed that the crashworthiness characteristics of crushing force consistency and specific energy absorption of the aluminium-composite hybrid tubes are superior to those of the bare aluminium tubes. When the glass fabric/epoxy composite is wrapped to aluminium cylindrical tubes, the specific energy absorption increases about 23-30%, and the wrapping of hybrid glass/kenaf fabrics increases the specific energy absorption of almost 40-52%. Such a hybrid tubular structures would be of huge prospective to be used as effective energy-absorbing devices in aerospace and automotive applications. A further benefit of the composite-wrapping approach is that the composite might be retro-fitted to aluminium tubes, and the energy absorption capability is shown to be significantly enhanced by such utilization.
机译：近年来，将铝金属的稳定且渐进的塑性变形与轻质复合材料相结合的铝复合混合管状结构，正日益满足满足耐撞性特性的需求。这篇研究文章介绍了新型铝/复合盖圆柱管在准静态和冲击轴向载荷下的实验结果。实验研究了铝管中不同封盖几何形状以及复合管中三种不同织物在圆柱管中的影响。冲击破碎测试的结果也与拟议的铝/复合封盖圆柱管的准静态结果相关。总体结果表明，铝复合杂化管的破碎力一致性和比能吸收的耐撞性优于裸铝管。当玻璃纤维/环氧树脂复合材料包裹在铝质圆柱管上时，比能量吸收增加约23-30％，而混合玻璃/洋麻纤维织物的包裹增加比吸收近40-52％。这样的混合管状结构在航空航天和汽车应用中用作有效的能量吸收装置具有巨大的前景。复合材料包裹方法的另一个好处是可以将复合材料重新安装到铝管上，并且通过这种利用可以显着提高能量吸收能力。

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